US3449876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tendon anchorage
Assignee: Individual
•
Filing: 1968-02-21
•
Granted: 1969-06-17
•
Expires: 1988-02-21
Abstract
No abstract record available.
Inventors
- 👤 George H Howlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:37
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08; E04C5/12; E04C5/122; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3909; Y10T24/44; Y10T24/44034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |